Amanda Restores

Amanda is a backup and recovery solution - http://www.amanda.org/

It is possible to restore files from backups manually or using Amanda utils.

Manually

Find the backup that contains the data you're interested in.  You'll need to skip the Amanda headers, I use DD:-
dd if=amanda_backup_file bs=32k skip=1 > backup_file.tar.gz

Assuming the backup was created as a gzipped tar you can then list the contents and, optionally, restore:-
tar -tvzf backup_file.tar.gz

tar -xvzf backup_file.tar.gz stats.txt